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Finding the Fourth Proportional to 22,201.72, 30,644.94 and 12,776.92

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Solution

The fourth proportional to 22,201.72, 30,644.94 and 12,776.92 is: 17,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.72 : 30,644.94 = 12,776.92 : x
  2. Step 2: Convert to fraction form
    22,201.72/30,644.94 = 12,776.92/x
  3. Step 3: Cross multiply
    22,201.72x = 30,644.94 × 12,776.92
  4. Step 4: Simplify right side
    22,201.72x = 391,547,946.78
  5. Step 5: Solve for x
    x = 391,547,946.78/22,201.72
  6. Step 6: Final answer
    x = 17,635.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.